Daniel 2:42

and that the toes of the feet were partly iron and partly fired clay—part of the kingdom will be strong, and part will be brittle.

The 10 horns are 10 kings who will rise from this kingdom. Another, different from the previous ones, will rise after them and subdue three kings.

And I saw a beast coming up out of the sea. He had 10 horns and seven heads. On his horns were 10 diadems, and on his heads were blasphemous names.

Treasury of Scripture Knowledge

And as the toes of the feet were part of iron, and part of clay, so the kingdom shall be partly strong, and partly broken.

The 10 horns are 10 kings who will rise from this kingdom. Another, different from the previous ones, will rise after them and subdue three kings.

And I saw a beast coming up out of the sea. He had 10 horns and seven heads. On his horns were 10 diadems, and on his heads were blasphemous names.

its legs were iron, and its feet were partly iron and partly fired clay.